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Sailboat specifications and datasheets

Kelt 8m deep draft

The Kelt 8m, here in "deep draft" version, is a 26’2” monohull sailboat designed by Gilles Ollier. She was built by Kelt (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 1977 and 1983 with about 400 hulls completed.
Kelt 8m Kelt 8m sailplanKelt 8m layoutKelt 8m sailingKelt 8m sailingKelt 8m accommodations
Kelt 8m's   Main Features
Model Kelt 8m
Version Deep draft
Type of hull Monohull
Category Cruising monohull
Cockpit Closed aft cockpit
Shipyard
Designer Gilles Ollier
Construction Hull:
monolithic fiberglass / polyester
Deck:
sandwich balsa / fiberglass / polyester
First built hull 1977
Last built hull 1983
Number of hulls built About 400
Appendages Keel :
Fin without bulb
Helm 1 tiller
Rudder 1 spade rudder
Unsinkable No
Trailerable No
French navigation category 2
Standard public price ex. VAT (indicative only) N/A
Kelt 8m's   Main dimensions
Length overall 27’ 1”
Hull length 26’ 2”
Waterline length 20’ 4”
Beam (width) 9’ 10”
Waterline beam (width) 8’ 1”
Draft 4’ 7”
Mast height from DWL 35’ 5”
Fore freeboard 3’ 4”
Mid-ship freeboard 3’ 1”
Light displacement 5291 lbs
Maximum displacement 6570 lbs
Ballast weight 1984 lbs
Ballast type Cast iron
French customs tonnage 6.65 Tx
Kelt 8m's   Rig and sails
Upwind sail area 431 sq.ft
Downwind sail area 737 sq.ft
Mainsail area 145 sq.ft
Genoa area 285 sq.ft
Solent area 215 sq.ft
Jib area 151 sq.ft
Stormjib area 54 sq.ft
Symetric spinnaker area 592 sq.ft
Rigging type Sloop Marconi masthead
Spars Mast and boom in Aluminum
Standing rigging Continuous
Number of levels of spreaders 1
Spreaders angle Swept-back
PiMainsail hoist measurement (from tack to head) 27’ 7”
EiMainsail foot measurement (from tack to clew) 9’ 2”
Kelt 8m's   Performances
HN (French rating) 3.5
IOR rating 19.5
Upwind sail area to displacementiThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.
The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. Upwind : under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 23 it indicates a fast sailboat.
22.31
Downwind sail area to displacementiThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.
The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size. Upwind : under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 23 it indicates a fast sailboat.
38.21
Displacement-Length ratio (DLR)iThe Displacement Length ratio is a figure that points out the boat's weight compared to its waterline length. DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet).
The DLR can be used to compare the relative mass of different sailboats no matter what their length: a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat.
285
Ballast ratioiThe Ballast ratio is an indicator of the stability; it is obtained by dividing the boat's displacement by the weight of the ballast. Since the stability depends also of the hull shape and the position of the center of gravity, only boats with similar ballast arrangements and hull shape should be considered.
Higher the ballast ratio is, greater is the stability.
38 %
Wetted surface 170 sq.ft
Maximum transverse section 13 sq.ft
Hull speediAs a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically the resistance when the boat reaches a speed-length ratio (speed-length ratio is the ratio between the speed in knots and the square root of the waterline length in feet) of about 1.2 (corresponding to a Froude Number of 0.35) . This very sharp rise in resistance, between speed-length ratio of 1.2 to 1.5, is insurmountable for heavy sailboats and so becomes an apparent barrier. This leads to the concept of "hull speed".
The hull speed is obtained by multiplying the square root of the waterline length (in feet) by 1.34.
6.04 knots
Kelt 8m's   Auxiliary engine
Engine(s) 1
Engine type Outboard or inboard engine
Engine (min/max) 8 HP / 10 HP
Fuel type Diesel
Fuel tank capacity 5.3 gal
Kelt 8m's   Accommodation
Cabin(s) 1
Berth(s) (min/max) 5 / 6
Head(s) 1
Fresh water tank capacity 26.4 gal
Maximum headroom 6’
Head headroom 5’ 6”
Kelt 8m's   Saloon
Maximum headroom 5’ 11”
Berth length 6’ 4”
Berth width 2’ 4”
Kelt 8m's   Fore cabin
Maximum headroom 5’ 1”
Berth length 6’ 5”
Berth width 6’ 8”
Kelt 8m's   Aft cabin
Berth length 6’ 4”
Berth width 2’ 4”

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